Rename Master is a free mass-file renaming utility with some useful features.

It is designed to rename multiple files with a just few clicks. Anyone that has worked with websites, file archives, or collections of music, videos, or pictures has probably spent way too much time renaming hundreds of files.

Features...

Intelligent number sorting

Full Unicode filename support

File and folder renaming

Custom filelist columns

Auto-Preview

Subfolder Scanning to rename files in multiple folder

Renaming Variables for JPEG/MP3/Video tags, file properties, counters, and more

Scripts to save commonly used renaming options

[*] and [?] command prompt style wildcards, or full Regular Expression support

Optional Explorer integration for right-clicking on files/folders or using "Send To"